[argyllcms] Re: Argyll 1.6.0 - Shallow blacks on Epson 3880

  • From: "Xavi" <forsfors@xxxxxxx>
  • To: <argyllcms@xxxxxxxxxxxxx>
  • Date: Mon, 23 Sep 2013 12:56:10 +0200

Hello Jacek !


Thank you for explain all the tests that you did.


Some time ago I downloaded the version 1.5.1 but it was not possible to test
it until few days ago.


I am surprised with your results with this version, because I don't have the
issues that you comment: shallow and cold blacks.


In my case I see deep and neutral blacks.


Could be that the difference was on the installed Colormunki Driver? Because
the version that appears on the device manager, of my Win8 Pro x64 is the from 01-17-2012



* Printer: Canon Pro9000MKII
* Paper: 3 different papers with same results

* Measurement Device: ColorMunki Photo
* Argyllcms :  1.5.1

* Version of CM driver on Device manager: from 01-17-2012

* O.S.: Windows 8 Pro 64 bits


Thank you once more to share your results with the list.









From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx]
On Behalf Of Jacek Pytowski
Sent: Sunday, September 22, 2013 4:24 PM
To: argyllcms@xxxxxxxxxxxxx
Subject: [argyllcms] Re: Argyll 1.6.0 - Shallow blacks on Epson 3880



> "Do you also tested the chartread.exe of the version 1.5.1, and it was not
compatible, or you not tested this version of chartread.exe?"

I tested all combinations of chartread.exe-s and drivers (on versions:
1.4.0, 1.5.1 and 1.6.0).
It seems that chartread.exe in v. 1.5.1 and 1.6.0 is broken. I got exactly
the same (very bad) results on them.
At the moment I work on Argyll 1.6.0 and only chartread.exe I use from 1.4.0
- results are nearly perfect.
"nearly" because there is minor issue related to chartread.exe 1.4.0.
Strip readings from it are a little bit less accurate than those one from
single (spot) read mode. I compared those values with values from original
ColorMunki software and conclusion is:
* charread.exe  1.5.1 and 1.6.0 is totaly broken.
* charread.exe 1.4.0 in spot mode is as good as ColorMunki software in STRIP
reading mode.
* charread.exe 1.4.0 in strip reading mode is a little bit less accurate
(but this "little" means really small difference. I would say this minor
issue - just good to know that hardware allows more and there is space for

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